Hundreds and thousands of dead fish have taken over the shores of Mexico's Cajititlan Lagoon over the past week. Report by Claire Lomas.

Hundreds of thousands of dead fish are found afloat in a lagoon in western Mexico. Deborah Lutterbeck reports.

Mexican authorities said on Monday that thousands of fish found dead in a lake in western Mexico did not die of natural causes. Over 53 metric tons of rotting fish have been removed so far from Lake Cajititlan in western Jalisco state.